En EspaŅol

Q. Who is Mr. Smarty Plants?

A: There are those who suspect Wildflower Center volunteers are the culpable and capable culprits. Yet, others think staff members play some, albeit small, role. You can torture us with your plant questions, but we will never reveal the Green Guru's secret identity.

Help us grow by giving to the Plant Database Fund or by becoming a member

Did you know you can access the Native Plant Information Network with your web-enabled smartphone?

Share

Ask Mr. Smarty Plants

Ask Mr. Smarty Plants is a free service provided by the staff and volunteers at the Lady Bird Johnson Wildflower Center.

Search Smarty Plants
    
 
See a list of all Smarty Plants questions
Can't find the answer in our existing FAQs, submit a question to Mr. Smarty Plants.
Need help with plant identification, visit the plant identification page.
 
rate this answer
4 ratings

Monday - March 21, 2011

From: Austin, TX
Region: Southwest
Topic: Trees
Title: Live Oak Suckers
Answered by: Brigid & Larry Larson

QUESTION:

Hello, my neighbor cleared away their St. Augustine grass for mulch and plantings. Under a huge, beautiful Live Oak tree they placed a wide bed of medium gravel, almost out to the drip line. It looked wonderful for a few weeks, until the little oak suckers started reaching for the sky. They are now almost as dense as a lawn, and my neighbors don't know quite what to do about it. Do you have any suggestions?

ANSWER:

Aha! Your neighbor has just created the perfect environment for those little oak suckers to emerge.  This is a favorite question asked by Central Texas homeowners.  I like the answer that the A&M Horticulture website had about this. 

  I quote in part:  “LEARN TO LOVE THEM because the more you cut the more they multiply. Some homeowners keep them trimmed at a certain height and interplant ground cover -- the ground cover conceals the oak sprout since the foliage is similar. We DO NOT recommend a herbicide application to sprouts since the sprouts are connected directly to the Mother tree and could cause damage. Roundup herbicide will do little more than defoliate the sprouts and could damage the tree to which they are attached. Learn to co-exist; they can become one of the most drought-tolerant ground covers available.”

Multiple previous answers by Mr Smarty Plants tend to pretty much agree with this; I will reference those answers in the summary that follows. 

 They lean towards cutting the suckers regularly, and even recommend sharpshooters and garden loppers as the tools of choice.   Be careful though, as this exposes the tree to Oak Wilt, so trimming these between February and June is highly discouraged.

  From my own experience, I can echo the advice given above and add to it a little bit.  We have two lovely Live Oaks in our front yard.  We opened the area under them when we converted the yard to a native garden.  Those suckers immediately started coming up and we had a large area where they were pretty thick.   I would mow and weed-whack them for normal control, then once or twice a year I’d dig as much as possible and cut some of the larger roots with loppers or shears.   Later I graduated to using a hedge trimmer under the soil [REPEAT:  Do not cut the Oak from February to June]

  Lately, we have converted from this to a covered situation similar to that recommended in this comment.  We laid down multiple layers of newspaper, covered by heavy cardboard, covered by 4-6” of mulch.  Using cardboard and paper allows some water to seep through, unlike the pond cover suggestion.  You should cover everything up to maybe 6” from the tree trunk.  We are now about 6 months into this and none have made it up yet.  I’m very hopeful, keep your fingers crossed for us.  Still, as they said in Jurassic Park:  “Life will find a way”.

 

More Trees Questions

Photographing and Identifying trees of Long Island
June 01, 2013 - After being in a car accident I got into photography as sports are a distant memory due to my injuries. As a new hobby I thought of taking pictures of trees and then finding out their species name. ...
view the full question and answer

Live oak wobbling in the ground from Austin
May 02, 2012 - I have a live oak that was not planted firmly in the ground by the subdivision builder's landscapers. The entire tree is wobbly to the touch and it has come close to dying as result of windy condit...
view the full question and answer

Probably non-native crapemyrtle trees damaged by hurricane
January 15, 2009 - I have 5 crape myrtle trees. I live in Galveston, Tx and when Hurricane Ike came through in September the salt water I think killed them. They have not come back since then and are brown with no leave...
view the full question and answer

Long Island Barrier Beach Plants
April 22, 2013 - I live on the south shore of Long Island on a barrier beach and am landscaping my property as a result of Sandy damage. I am going with a sand base, and I am looking for suitable trees and shrubs for...
view the full question and answer

Identity of fragrant oak-like leaves used at funeral
October 14, 2012 - In the early 1950's I attended my grandmother's funeral in the Southern West Virginia area. At the gravesite, the funeral home had provided what looked like dried oak leaves, (red brown and gold col...
view the full question and answer

Smarty Plants's Facebook profile Support the Wildflower Center by Donating Online or Becoming a Member today.

Mr. Smarty Plants wants you to be his Facebook friend. Click the Facebook icon to add yourself to Mr. Smarty Plants list of friends.
E-NEWSLETTER | BECOME A MEMBER | DONATE NOW | MEDIA | SITEMAP | STAFF
© 2015 Lady Bird Johnson Wildflower Center